wells



(No Model.)

P. E. & P. 0. WELLS.

TIRE UPSETTBR.

Patented Jan. Z, 1883.

u. bruns. Pmwmhampher. www1. uv c ilNiTED STATES PATENT OFFICE.

FREDERIC E. WELLS AND FRANK O. WELLS, OF GREENFIELD, MASS.

T'iRE-UPSETTER.

SPECIFICATION forming part of Letters Patent. No. 269,901, dated January 2, 1883.

Application filed July 24, 1880. (No model.)

-in Tire-Upsettling Machines, which improvement is fully set forth in the lollowing specitcation, reference being' hud to the accoxnpuu) ing drawings. y

The object of the invention is to shorten -tires without cutting and Welding them.

In the accompanying drawings, Figure 1 is a top View; Fig. 2, a front view; and Fig. 3 is a longitudinal section through the middle.

B represents the tire.

C (l are the cams,which swing on bolts which pass through them from pieces e e to plates JJ.

h is the shoe or follower, the ends of which rest on projections on the cams U C.

I) D are the nuts, one with a right-hand and the other with a left-hund thread, which govern the motion of cams U C.

A is a right and lel't hand screw-threaded shaft, the revolvingl ot' which moves the nuts D D.

F is the hed-piece.

e e are attached to the hed, one tightly and the other loosely.

The operation is as follows: The tire, being heated about three or four inches in lenglh,is placed in the machine with the hot place equidistant from the cams and resting on them.

The shaft A is then revolved by means of handle n, which causes the nuts D D to move toward eat-h other, and the cams G C to turn on theirvaxes until the tire is held between cams G U and pieces e e. The shoe is also raised as fastas the tire until the tire is held. It then slides on the cams to prevent its rising higher' and pressing too hard on the tire. 'Ihe tire being now held last and the revolutions ot' the shaft continued, the piece e, which is attached to the bed loosely, moves toward the other, and the tire is upset. The shoe h prevents the tire from bending down and the pieces e e prevent it from bending up.

le do not. claim as a part of our invention the smaller part. ot llic shaft-screw having a liner pitch than the larger part, which would make a differential screw, as this is not essential.

Having thus described our invention, we

claim and desire to secure by Letters Patentl 1. The combination ol' the shoe h and pieces e e', cams G C, nuts D l), and shaft A for the purpose ot' upsetting the tire and incidentally preventing it from bending, substantially as described 2. The combination of the shaftA,cams G C, nuts D D, pieces e c', bed-piece F, plates J J', and shoe l2., substantially as described.

FREDERIC E. WELLS.

FRANK 0. WELLS.

Witnesses:

EDWIN STEATTON, RUEUs A. LiLLY. 

